#define IS_UNSIGNED(t) \
	_Generic((t), \
	         uint8_t: true, \
	         uint16_t: true, \
	         uint32_t: true, \
	         uint64_t: true, \
	         unsigned long long: true, \
	         int8_t: false, \
	         int16_t: false, \
	         int32_t: false, \
	         int64_t: false, \
	         signed long long: false)
